Orthodontic appliance holder



FIG. 1 is a right-front-top perspective view of a orthodontic appliance holder showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a back side view thereof. 

The ornamental design for an orthodontic appliance holder, as shown. 